The Pressure of QCD at finite temperatures and chemical potentials
May, 200334 pages
Published in:
- Phys.Rev.D 68 (2003) 054017
e-Print:
- hep-ph/0305183 [hep-ph]
Report number:
- HIP-2003-30-TH
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Abstract:
The perturbative expansion of the pressure of hot QCD is computed here to order g^6ln(g) in the presence of finite quark chemical potentials. In this process all two- and three-loop one-particle irreducible vacuum diagrams of the theory are evaluated at arbitrary T and mu, and these results are then used to analytically verify the outcome of an old order g^4 calculation of Freedman and McLerran for the zero-temperature pressure. The results for the pressure and the different quark number susceptibilities at high T are compared with recent lattice simulations showing excellent agreement especially for the chemical potential dependent part of the pressure.- 11.10.Wx
- 12.38.Mh
- quantum chromodynamics
- finite temperature
- potential: chemical
- pressure
- perturbation theory
- Feynman graph: higher-order
- lattice field theory: susceptibility
- dimensional reduction
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